Yes, totally agree that the top schools probably couldn't care less about qualifications like Prince2, ISEB, ...Focus on getting a really good score in the GMAT, i.e. 700 or above, then craft a good application and do well in the interviews.Maybe, the only qualification that might help in getting into top schools could be the CFA, but it takes a long time to do (3 yrs) and is very tough, from what i hear